Machine for bending panels



I 'Jun 17, 1930. c. B. NORRIS 1,764,464

MACHINE FOR BENDING PANELS Filed March 15 1929 a, Appl idationffiled March 1 5, IS'Z BJUSriaI- N L I 1 E "Thefpresent inventipn relates particularly s me aside}, i I "tojthe bending ofp'ly-wood panels to produce v l from; eachtvvozor more sides 0rp0r ti0ns of.

g'1 .su0h sides. of a boxlike stru'cture;and it has for itsobjectte'producea simple'and -n'oyel gm'eans for so bending panels- 7 5 V Q "The various features ef neveltj 'wherebys myinventien is characterized will hereinafter l a bepointed -out with -p'articnlarity in the V claims; but, for a full understanding of my inventionan'd. of its'febjects and advantages, is n jreference maybe hadto the follewirigdetaileddeseriptibntaken'inconnection with the ac- -companying*drawing,? wherein Q V n Figure'lisia-perspectiveview-of anappai'a I I I, ,tus emhedyin'g the present invention Fig.2T" h al -sideviw'of the apparatusion asmaller' scale than Fig. 1; showing one of the cla -1' ing fbarsj'in p0siti0n; Fig. 3 is anedge View l 32 of la secondfclampingl bar; andFigZ 4 is a f perspective view'of the bending implement. t QReferring t0 the drawing, 1*represen'tsa if hollow block, conveniently 'of east iron, fhav' hw e d i'eitio ld f prl ii f ht a rt e i a ing a contour corresponding tojthe insideofgf a the-box Whese sides, or" some of theflsidesof f whieh thepanel is tdform. The'blo'ck there? J I Y foreco nstitutesa 'form.' Steampipes 2and3 are eennected'to the bottom of the form'so f that-steam finder aconsiderable pressure,say jaho'nt ninety pounds'to the square inch, may; be/introduced into the form.- v j t The vertical corners ofthebldck (Sr-form j are rounded. On each sideof the form isa pi1r f1ose iofiljl'g s f0 "sup:

e I t swinging'flap inthe form of, a heavy metal arrangemen -{she f pla'telwhose heightlis approximately equal aitltheiii lowei'lfindst 3 v I to that of the fOrIn and whosewidthis'con- 'thatinay restuponan v siderahlyless'than the cerresponding dimen- "'ablie;heneh;ortab v s I v M si0n 9f the sideof theform beside "which the In 'i sing theapparatns', t V panel to belhent; n .gfia'p is lecatedl These flaps are indicated at is placed between thefQrin and the filap"4,fqnj 4 5 4; 5; 6and7. Eachfiapis hinged at its-lower example,andthej flaplis loc edinfits hqldingfifl" '-j i I end to the form by means ofsuitahlehinges 8., pqsitie byme afis tifthe cl l g Itwill, be.seenfthat axpanelemay be bent if; s f I around; the fermand heclamped" against its Figljlglfw h panel'llying be e a i a .fourfsidesjby ineans'ofthe swinging plates, hefprm Theflaijflbein 'n'a .1 'fif' orflapsl The flapsj-areheld in their raised lowered idl pbsitie'n the bending 'dev I s .1' fp dsitions, closed on the Work,in anysuitable syvl ngfb 'e qbseryerfhending way' ceinvenie'ntly bymeans of clamping de- .hiehjthe v vices'suchas shown in Figs-2 and? One J i V v Thef beiidingdew H e 1 7 (if these clamping devices cemprises'asp ring applied atthe cornerg n h e.pppqsite7 h ngfi ends 1 ent laterally bn the 'sidei iftheflepgeandaisetond be d me thenrswnng up and 7 now the panel is'bein'gfirmly held flat'againsr 2, and the iree ends of the panel are then bent to; he flat against the side of the form on which the flap 6 is'10cated.-' The flap 6 is clamped in placeisoth'af the foursidesof the form:

where thebendsareto occur td t facilitatethe bending thereof. l Thehe at of the form dries out the damp areasand cansesgtheybends to;

set, so that when the dried panel is removed from the form it will remain appr ximately the shape into whieh it'isbent. [If it is V notdesiredto leave the panel o'n'the form- 1mtilit'shas dried, it may be renio'tfedfafter the H bendingpperation has been completed, and i be placed' i-n a suitable holderfnntilflit"has Theientiiie panel should not be moistened, as thatsimply woul'd make it necessary to drive outmore' noisture'in the drying operation( "Ihave found that a fiery simple way 7 of supplying; the] necessary moisture in ,only those areasfwhe'rebendsare to ocenr isto lay a'w idththat thestripzmoistened ,thereby will; a not be needlessly wide;

" are tobe madewhenthe panelislaid thereonh,

the panels onIab'soibent pads'fth'at'; rest in body'of water, These pads areflong enough toiezitendcacrossxthe, panel andiare ,of smell The pads arelaid in ing a form, pro

gage with any one of the pins at one endof the sponding spin at the 3, Aimachine for other end.

bending panels comprisecting pins at the ends of the form, the pins at one end being aligned with the corresponding pinsfat the other end, and a bending device comprising a fork having I 7 -atthe-freeends ofits prongs hooks one of The panel should be damp-in the-zoneswhi-eh is adaptedto-engage' with api form vwhile the other engages a Gene v endfoii-the form.-whi1ethe;;other engages the corresponding pin at the; other end.

fication. a Y GHARLES B. NORRIS.

Intestimony.='whereof, I sign this speci the water, parallel witheach other and at the I V proper distances? between centers to pause them to: register with thellines on which bends I jWhile'I have illustrated and described with:

ed and described; bnti'ritend to cover all forms and arrangements atrhich come within the definitions of my intention constituting,

the appended b aim' j I Claim v l lgA'mach'ne' for bndih eanlspbnipris-g i s f0 ln'g pins atthe ends of theffortn at the axes:

rm havingroundedeor'ners; project-i r abontwhichthe corners are curved, and a, c

bending device comprising a fork haying, at

1 the free ends of its prongs hooks one of, which is adapted to pins at both ends'of the form indie-vicinity of the. fourlcorners,-.a flap hinged to the lowpr sl g a fork" having at the free} endsof its' pnmg s" h qk on o f which is ada ted to; @115 engagefiwlth any one'ot the V v p ns atone end of the form while the. other engages the corresponding pinat theothen end. p f e 2. A rnachine t the character; described coinpris ng a rectangular form, projecting 

